celestial meridian

Also found in: Encyclopedia, Wikipedia

0.01 sec.

celestial meridian

1. A great circle on the celestial sphere passing through the celestial poles and an observer's zenith. An observer's celestial meridian is not a fixed reference on the celestial sphere but rather changes with the observer's location on Earth. Stars transit an observer's celestial meridian (that is, cross directly overhead in the sky at that location) once every 24 hours. Also called local meridian, meridian.

2. In the equatorial coordinate system, a great circle on the celestial sphere passing through the celestial poles and the vernal equinox. It represents the zero point for the horizontal coordinate in this system, having a right ascension of 0 hours.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback
Add definition

Mentioned in	?		Dictionary browser	?		Full browser	?
hour angle hour circle local meridian Meridian transit			celery celery blight celery cabbage celery pine celery root celery salt celery seed celery stick celery top pine celery-leaved buttercup celery-topped pine celesta celestial celestial body Celestial City Celestial Empire celestial equator celestial globe celestial guidance celestial hierarchy celestial horizon celestial latitude celestial longitude Celestial magic celestial mechanics celestial meridian celestial navigation celestial orbit celestial point celestial pole celestial sphere Celestialize Celestially Celestify celestine celestite Celexa celiac celiac artery celiac disease celiac trunk celibacy celibate celibatist celidography Céline celiocentesis celioma celioscopy celiothelioma cell			celestial equators celestial equators celestial fix celestial geodesy celestial globe celestial globe Celestial globes Celestial globes celestial guidance celestial guidance Celestial hemisphere Celestial hemisphere celestial hierarchy celestial horizon celestial horizon Celestial Intervention Agency Celestial Labs Ltd. celestial latitude celestial latitude celestial latitudes celestial latitudes celestial line of position celestial longitude celestial longitude celestial longitudes celestial longitudes Celestial magic Celestial Master Zhang celestial mechanics celestial mechanics celestial meridian celestial navigation celestial navigation celestial navigation Celestial Navigation Trainer Celestial Navigation Trainer Celestial Navigation Training Celestial Nickel Mining Exploration Corporation Celestial observation celestial orbit celestial parallel Celestial photography Celestial photography celestial point celestial pole celestial pole celestial poles celestial poles Celestial Reference Frame Celestial reference system celestial sphere celestial sphere celestial sphere Celestial spheres Celestial spheres Celestial Therapeutic and Ornamental Gardens celestial-inertial guidance Celestialize celestially celestially Celestials

Dictionary, Thesaurus, and Translations

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.